Uh-huh? I've never opened a real Riddex rodent repeller unit, but I find it highly doubtful that sending "digital pulses" through your mains wiring is likely to have any effect on creepie crawlies or four legged fluffy rodents at all. But nonetheless, let's take a look inside this suspiciously cheap unit from China to see if it's circuitry hints at any "digital pulsing" action. At the very least, it's a very nice case. I conclude this video by offering design improvements that could potentially save the manufacturers 2 cents and improve the units overall efficiency by 30%.
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